Upper Limb Bones

Scapula

shoulder blade

Suprascapular notch

a small, curved depression on the upper border of your shoulder blade that creates a protected tunnel for nerves and blood vessels traveling to your shoulder muscles

supraspinous fossa

a shallow, concave depression located on the upper, back side of the scapula (shoulder blade), directly above the scapular spine

infraspinous fossa

a broad, shallow depression located on the back surface of the scapula (shoulder blade) directly below the scapular spine

subscapular fossa

a broad, concave surface on the front (anterior or costal) side of the scapula, or shoulder blade, that faces the rib cage

Superior angle

the upper, smooth corner of the shoulder blade where its superior and medial borders meet

Inferior angle

bottom point of scapula

medial border

Inner edge of the scapula

lateral border

Outer edge of the scapula.

spine of scapula

posterior ridge of scapula

Acromion

an extension of the scapula that forms the high point of the shoulder

Coracoid process

process above the glenoid cavity that permits muscle attachment

glenoid process

socket in the scapula for the arm bone

Clavicle

collar bone

Acromial (lateral) end

Flattened lateral end that articulates with the acromion of the scapula to form the acromioclavicular (AC) joint

Sternal (medial) end

oval or triangular medial end that articulates with the sternum to form the lateral walls of the jugular notch

Humerus

upper arm bone

head of humerus

articulates with glenoid cavity of scapula

anatomical neck of humerus

distal to head of humerus; visible as an oblique groove

intertubercular sulcus of humerus

a deep depression on the upper part of the humerus bone that separates the greater and lesser tubercles. Located on front side.

Greater tubercles

a large bony prominence on the upper, outer side of the humerus (upper arm bone) that anchors key rotator cuff muscles

lesser tubercle

a small, prominent bump on the front and upper part of the humerus (the upper arm bone) that serves as the attachment point for the subscapularis muscle

surgical neck

the narrowed part of the upper arm bone located just below the greater and lesser tubercles

deltoid tuberosity

a rough, raised, triangular landmark located on the middle of the outer (lateral) side of the upper arm bone (humerus)

radial fossa

a small, shallow depression on the front part of the lower humerus (upper arm bone) just above the capitulum. Located on front

medial epicondyle

prominent bony bump on the inner side of your elbow, located at the lower end of the upper arm bone

lateral epicondyle

The lateral epicondyle is the bony bump on the outer side of your elbow where your forearm tendons attach

coronoid fossa

a small depression on the front part of the lower humerus (upper arm bone) just above the trochlea

olecranon fossa

a deep triangular depression on the back of the lower humerus (upper arm bone) that holds the tip of the ulna when you straighten your arm

capitulum

a small head or rounded knob-like structure

Trochlea

a smooth, grooved articular process shaped like a pulley

Ulna

medial bone of the forearm

olecranon of ulna

the large, bony tip of the elbow

trochlear notch of ulna

a large, C-shaped depression located at the upper end of the ulna bone in the forearm that fits tightly with the humerus to form the main part of the elbow joint

coronoid process of ulna

a triangular bony projection at the upper, front part of the ulna bone that helps form the elbow joint and keep it stable

radial notch of ulna

a small, smooth depression on the outer side of the upper ulna

ulnar styloid process

a small, pointed bump of bone at the bottom of the ulna on the pinky-finger side of your wrist

radius

Runs on the thumb side of the wrist up to the elbow, parallel to the ulna bone

head of radius

the disc-shaped, expanded top part of the radius bone in the forearm, located on the thumb side of the elbow

neck of radius

the short, narrowed segment of the radius bone located just below the radial head and directly above the radial tuberosity near the elbow

radial tuberosity

a small, rough bony bump on the radius bone of the forearm just below the elbow

radial styloid process

a pointed, bony projection at the thumb-side (lateral) end of the radius bone in the forearm

Navicular (Scaphoid)

a small boat-shaped bone on the thumb side that frequently breaks during a fall

Lunate

a crescent-shaped small bone located in the center of the proximal row of the wrist bones (the row closest to the forearm)

Triquetrum

a pyramid-shaped carpal bone located on the medial (pinky) side of the wrist's proximal row

Pisiform

a small, pea-shaped bone on the palm side of the wrist on the little-finger side

Trapezium

a small, four-sided carpal bone located in the wrist at the base of the thumb

Trapezoid

located in the wrist at the base of the pointer finger

Capitate

the largest of the eight carpal bones located in the center of the human wrist

Hamate

a small, wedge-shaped carpal bone located on the pinky (ulnar) side of the wrist that supports grip strength and anchors key ligaments

NLTPTTCH

Naughty (Navicular), Lovers (Lunate), Try (Triquetrum), Positions (Pisiform), That (Trapezium), They (Trapezoid), Cant (Capitate), Handle (Hamate)

Metacarpals 1-5

five long bones that form the framework of the palm in the human hand

proximal phalanges

the phalanges closest to the wrist

distal phalanges

the phalanges furthest from the wrist

middle phalanges

articulate with the proximal and distal phalanges